Micro motor based on multi-layer sealing and compression-resistant structure

Abstract

The utility model discloses a micro motor based on a multilayer sealing and compression-resistant structure, and relates to the technical field of micro motors, the micro motor based on the multilayer sealing and compression-resistant structure comprises a reinforced housing and a sealing cover plate which are fixedly connected with each other, and the micro motor is installed between the reinforced housing and the sealing cover plate; the micro motor comprises a motor shell, the motor shell is provided with a metal shell placed in a reinforcing shell, reinforcing fins are fixedly connected to the outer side of the metal shell in an annular array mode, and the reinforcing fins and the metal shell are integrally arranged. According to the utility model, the motor shell is placed on the inner side of the hollow sealing shell, then the hollow cover is fixed above the hollow sealing shell, and the reinforcing shell and the sealing cover plate play a role in protecting the internal micro motor, so that the micro motor is prevented from being deformed and damaged after being collided, and the structural strength of the micro motor is further improved.

Description

Technical Field

[0001] This utility model specifically relates to the field of micro motor technology, and specifically to a micro motor based on a multi-layer sealing and pressure-resistant structure. Background Technology

[0002] A micro motor is a small motor that converts electrical energy into mechanical energy. It plays a key role in many devices and instruments, providing power for their operation, such as turning the blades of a small fan or moving the parts of an electric toy.

[0003] The working principle of a micro motor is also based on the law of electromagnetic induction. When a single-phase alternating current is applied to the stator winding, an alternating magnetic field is generated inside the stator. This alternating magnetic field induces an electromotive force and current in the rotor winding. This induced current is subjected to the Ampere force in the magnetic field, causing the rotor to rotate in the direction of rotation of the magnetic field.

[0004] However, in practice, it has been noted that micro motors are small in size, resulting in a compact internal structure. Furthermore, the outer casing of micro motors is thin, making them prone to deformation when impacted, which can damage the internal magnetic field and affect the motor's performance. During use, dust can easily enter the micro motor and accumulate in the gap between the rotor and stator, increasing friction during rotor rotation and causing the micro motor to overheat and become damaged. Utility Model Content

[0005] The purpose of this invention is to provide a micro motor based on a multi-layer sealing and pressure-resistant structure. A reinforcing outer shell is installed on the outside of the micro motor, and reinforcing fins on the outer shell increase the micro motor's pressure resistance. Furthermore, a corresponding sealing cover plate on the top improves the micro motor's sealing performance. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The micro motor based on the multi-layer sealing and pressure-resistant structure includes a reinforced outer shell and a sealing cover plate that are fixedly connected to each other, and the micro motor is installed between the reinforced outer shell and the sealing cover plate;

[0008] The micro motor includes a motor housing, which has a metal shell placed inside a reinforced shell. Reinforcing fins are fixedly connected to the outer side of the metal shell in a ring array, and the reinforcing fins are integrally formed with the metal shell.

[0009] As a further technical solution of this utility model, the reinforced outer shell includes a hollow sealed shell, and a matching slot for placing a waterproof junction box is provided on the side of the hollow sealed shell, and the waterproof junction box extends through the matching slot to the side of the hollow sealed shell.

[0010] As a further technical solution of this utility model, the inner bottom of the hollow sealing shell is integrally provided with a reinforcing protrusion, and the side of the hollow sealing shell is provided with a positioning groove corresponding to the reinforcing fin, and the end of the reinforcing fin away from the metal shell is inserted into the positioning groove.

[0011] As a further technical solution of this utility model, the top of the metal shell is fixedly connected to a mounting cover plate, and both sides of the mounting cover plate extend to the outer side of the hollow sealed shell, while the inner side of the mounting cover plate is through which the motor spindle passes.

[0012] As a further technical solution of this utility model, the sealing cover plate includes a hollow cover covering the hollow sealing shell, and bolt holes arranged in a ring array in the hollow cover, while the hollow sealing shell has threaded fixing holes corresponding to the bolt holes at one end near the hollow cover.

[0013] As a further technical solution of this utility model, a locking screw is inserted into each of the threaded fixing holes. The locking screw is divided into three sections, from top to bottom: a nut, a positioning post, and a threaded rod. The positioning post passes through the threaded fixing hole, while the threaded rod is threadedly connected to the threaded fixing hole.

[0014] As a further technical solution of this utility model, the bottom of the hollow cover is provided with a waterproof shell groove and an ear plate slot, wherein the end of the waterproof junction box fits into the waterproof shell groove, and the two ends of the cover plate pass through the ear plate slot.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model places the motor housing inside the hollow sealed shell, and then fixes the hollow cover on top of the hollow sealed shell. By reinforcing the housing and the sealing cover, the internal micro motor is protected, preventing deformation and damage after being bumped, thereby improving the structural strength of the micro motor.

[0017] In this invention, reinforcing fins are fixedly connected in a ring array on the outer side of the metal shell, and the ends of the reinforcing fins are inserted into the corresponding positioning slots in the hollow sealing shell. The reinforcing fins strengthen the structural strength between the metal shell and the hollow sealing shell, thereby improving the compressive strength of the micro motor.

[0018] In this invention, the bottom of the hollow cover has an ear plate groove corresponding to the mounting cover plate and a waterproof shell groove corresponding to the waterproof junction box, ensuring that the end of the hollow cover fits snugly with the end of the hollow sealing shell, thereby increasing the sealing performance of the micro motor and forming a multi-layer seal with the metal shell of the micro motor, thus improving the sealing effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the internal structure.

[0021] Figure 3 This utility model Figure 2 A magnified view of a portion of the image.

[0022] Figure 4 This is a three-dimensional structural diagram of the reinforced outer shell in this utility model.

[0023] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0024] Figure 6 This is a three-dimensional structural diagram of the micro motor in this utility model.

[0025] Figure 7 This is a three-dimensional structural diagram of the sealing cover plate in this utility model.

[0026] Figure 8 This is a three-dimensional structural diagram of the locking screw in this utility model.

[0027] In the picture:

[0028] Motor spindle-1, mounting cover plate-2, waterproof junction box-3, reinforced housing-4, hollow sealing housing-41, mating slot-42, reinforced protrusion-43, positioning slot-44, threaded fixing hole-45, sealing cover plate-5, hollow cover-51, shaft hole-52, bolt hole-53, waterproof housing groove-54, ear plate slot-55, locking screw-6, motor housing-7, metal housing-71, reinforced fins-72. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8 This utility model embodiment provides a micro motor based on a multi-layer sealing and pressure-resistant structure, including a reinforced outer shell 4 and a sealing cover plate 5 that are fixedly connected to each other, and a micro motor is installed between the reinforced outer shell 4 and the sealing cover plate 5;

[0031] The micro motor includes a motor housing 7, which has a metal housing 71 placed in a reinforced housing 4, and reinforced fins 72 are fixedly connected to the outer side of the metal housing 71 in a ring array, and the reinforced fins 72 are integrally formed with the metal housing 71.

[0032] By adopting the above technical solution, the motor housing 7 is placed inside the hollow sealing shell 41, and then the hollow cover 51 is fixed on top of the hollow sealing shell 41. The reinforced housing 4 and sealing cover 5 provide protection for the internal micro motor, preventing the micro motor from being deformed or damaged after being bumped, thereby improving the structural strength of the micro motor.

[0033] In this embodiment, the reinforced outer shell 4 includes a hollow sealed shell 41, and a mating slot 42 for placing a waterproof junction box 3 is provided on the side of the hollow sealed shell 41, and the waterproof junction box 3 extends through the mating slot 42 to the side of the hollow sealed shell 41.

[0034] More specifically, the hollow sealing shell 41 has an integrally formed reinforcing protrusion 43 on the inner bottom, and the hollow sealing shell 41 has a positioning groove 44 corresponding to the reinforcing fin 72 on the side, and the end of the reinforcing fin 72 away from the metal shell 71 is inserted into the positioning groove 44.

[0035] By adopting the above technical solution, the outer side of the metal shell 71 is fixedly connected with reinforcing fins 72 in a ring array, and the end of the reinforcing fins 72 is inserted into the inner side of the corresponding positioning slot 44 in the hollow sealing shell 41. The reinforcing fins 72 are used to strengthen the structural strength between the metal shell 71 and the hollow sealing shell 41, thereby improving the compressive strength of the micro motor.

[0036] Furthermore, the top of the metal housing 71 is fixedly connected to a mounting cover plate 2, and both sides of the mounting cover plate 2 extend to the outer side of the hollow sealing housing 41, while the inner side of the mounting cover plate 2 is through which the motor spindle 1 passes.

[0037] Furthermore, the sealing cover plate 5 includes a hollow cover 51 covering the hollow sealing shell 41, and the hollow cover 51 has bolt holes 53 arranged in a ring array, while the hollow sealing shell 41 has threaded fixing holes 45 corresponding to the bolt holes 53 at one end near the hollow cover 51.

[0038] More specifically, each of the aforementioned threaded fixing holes 45 is fitted with a locking screw 6. The locking screw 6 is divided into three sections, from top to bottom: a nut, a positioning post, and a threaded rod. The positioning post passes through the threaded fixing hole 45, while the threaded rod is threadedly connected to the threaded fixing hole 45.

[0039] More specifically, the bottom of the hollow cover 51 is provided with a waterproof shell groove 54 and an ear plate slot 55, wherein the end of the waterproof junction box 3 fits into the waterproof shell groove 54, and the two ends of the mounting cover 2 pass through the ear plate slot 55.

[0040] By adopting the above technical solution, the bottom of the hollow cover 51 has an ear plate slot 55 corresponding to the mounting cover plate 2 and a waterproof shell groove 54 corresponding to the waterproof junction box 3, which ensures that the end of the hollow cover 51 fits with the end of the hollow sealing shell 41, thereby increasing the sealing performance of the micro motor and forming a multi-layer seal with the metal shell 71 of the micro motor, thus improving the sealing effect.

[0041] Furthermore, the hollow cover 51 has a shaft hole 52, and the end of the motor spindle 1 extends through the shaft hole 52 to the top of the hollow cover 51. The hollow cover 51 seals the end of the micro motor without affecting the rotation of the motor spindle 1.

[0042] The working principle of this utility model is as follows: When in use, the micro motor is first placed inside the hollow sealing shell 41, and the end of the reinforcing fin 72 in the micro motor is inserted into the positioning slot 44 at a suitable position. The reinforcing fin 72 reinforces the gap between the hollow sealing shell 41 and the metal shell 71 to prevent the micro motor from being deformed or damaged after being bumped. At the same time, the waterproof junction box 3 on the side of the micro motor is inserted into the inner side of the mating slot 42. Then, the hollow cover 51 is fastened to the top of the hollow sealing shell 41, and the waterproof junction box 3 and the two sides of the mounting cover plate 2 are respectively inserted into the waterproof shell groove 54 and the ear plate slot 55. Finally, the end of the locking screw 6 is threaded through the bolt hole 53 and threaded into the threaded fixing hole 45. The micro motor is sealed in multiple layers by the reinforcing shell 4 and the sealing cover plate 5, thereby improving the sealing effect.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A micro motor based on a multilayer sealing and compression-resistant structure, characterized in that: It includes mutually fixed and connected reinforcing shell (4) and sealing cover plate (5), and micro motor is installed between reinforcing shell (4) and sealing cover plate (5); Micro motor includes motor shell (7), and motor shell (7) has metal shell (71) placed in reinforcing shell (4), and the outer side of metal shell (71) is fixedly connected with reinforcing fin (72) in annular array, and reinforcing fin (72) is integrally arranged with metal shell (71).

2. The micromotor based on a multilayer sealing and pressure-resistant structure according to claim 1, characterized in that: The reinforcing shell (4) includes a hollow sealing shell (41), and the side of the hollow sealing shell (41) is provided with a matching insertion slot (42) for placing the waterproof junction box (3), and the waterproof junction box (3) extends through the matching insertion slot (42) to the side of the hollow sealing shell (41).

3. The micromotor based on a multilayer sealing and pressure-resistant structure according to claim 2, characterized in that: The inner side of the hollow sealing shell (41) is integrally provided with a reinforcing protrusion (43), and the side of the hollow sealing shell (41) is provided with a positioning clamping groove (44) corresponding to the reinforcing fin (72), and the end of the reinforcing fin (72) away from the metal shell (71) is inserted into the positioning clamping groove (44).

4. The micromotor based on multilayer sealing and pressure-resistant structure according to claim 3, characterized in that: The top of the metal shell (71) is fixedly connected with the mounting cover plate (2), and the two sides of the mounting cover plate (2) extend to the outside of the hollow sealing shell (41), and the inside of the mounting cover plate (2) penetrates the motor main shaft (1).

5. The micromotor based on multilayer sealing and pressure-resistant structure according to claim 4, characterized in that: The sealing cover plate (5) includes a hollow cover (51) covering the hollow sealing shell (41), and the hollow cover (51) is provided with a plurality of bolt holes (53) in annular array, and the end of the hollow sealing shell (41) close to the hollow cover (51) is provided with a threaded fixing hole (45) corresponding to the bolt hole (53).

6. The micromotor based on multilayer sealing and pressure-resistant structure according to claim 5, characterized in that: Each threaded fixing hole (45) is inserted with a locking screw (6), and the locking screw (6) is divided into three sections, from top to bottom in turn as nut, positioning column and threaded rod, wherein the positioning column penetrates the threaded fixing hole (45), and the threaded rod is threadedly connected with the threaded fixing hole (45).

7. The micromotor based on a multilayer sealing and pressure-resistant structure according to claim 6, characterized in that: The bottom of the hollow cover (51) is provided with a waterproof shell groove (54) and an ear plate clamping groove (55), respectively, wherein the end of the waterproof junction box (3) is attached to the waterproof shell groove (54), and the two ends of the mounting cover plate (2) penetrate the ear plate clamping groove (55).

Images